Smallest x > 0 such that gcd(2^x, A004086(2^x)) = 2^n.

Terms

a(0) =4a(1) =1a(2) =2a(3) =3a(4) =26a(5) =131a(6) =227a(7) =301a(8) =567a(9) =879a(10) =3240a(11) =11051a(12) =8048a(13) =38911a(14) =7321a(15) =97309a(16) =108190a(17) =6294a(18) =138124a(19) =4675268a(20) =2687104a(21) =1336154a(22) =5774420